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Rallye Maths Rouge 02

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Rallye Maths Rouge 02

N°1

Coupe l’étoile en deux parties.

L’addition des nombres de chacune des parties doit donner le même résultat.

N°2

J’ai choisi une carte sur laquelle il y a deux triangles et un cercle en bas à gauche.

Il n’y a pas de rectangle sur la carte que j’ai choisie.

Quelle carte ai-je choisie ?

N°3

Combien peut-on écrire de nombres à trois chiffres différents avec les chiffres 4, 2 et 7 en les utilisant chacun une seule fois dans chaque nombre ?

N°4

Voici 3 messages secrets :

J’en ai traduit 2 : le poisson nage

les moineaux chantent Aide-moi à traduire le dernier message.

N°5

Quelle construction voit-on de dessus ?

8 4

6

7 1

9

2 8 3

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